A landmark study has discovered the possible cause of sudden infant death syndrome (SIDS), but doctors say more research is needed. St. Louis News: FOX 2 covers news, weather, and sports in Missouri and Illinois. Read more about this story or see the latest updates on our website https://FOX2Now.com Follow FOX 2 on social media: YouTube: https://www.youtube.com/FOX2Now Facebook: https://www.facebook.com/FOX2Now/ Twitter: https://twitter.com/FOX2Now/ Instagram: https://www.instagram.com/fox2now/ TikTok: https://tiktok.com/@fox2now SnapChat: https://www.snapchat.com/add/fox2now